[Buildroot] [PATCH v2 14/15] arch/arm: add two new non-cortex-based armv8.2a cores
Romain Naour
romain.naour at gmail.com
Wed May 8 15:07:19 UTC 2019
From: "Yann E. MORIN" <yann.morin.1998 at free.fr>
The Neoverse N1 CPU was supported in GCC earlier through the codename Ares [1].
[1] https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=37cf0ddecfd1eb5c6852a44135af5a92e5103931
Build tested:
https://gitlab.com/kubu93/buildroot/pipelines/60318953
Signed-off-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
[Romain: rename BR2_ares to BR2_neoverse_n1]
Signed-off-by: Romain Naour <romain.naour at gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni at bootlin.com>
---
v2: add neoverse-e1 (Yann)
reorder alphabetically after renaming ares to neoverse-n1.
Note: The Neoverse E1 CPU needs at least binutils 2.32 to support Speculative Store
Bypass Safe instruction (SSBS) which is part of ARMv8.5-A architecture extensions.
Postpone the support for this new ARM core.
See: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=104fefeebb544b7745bb353b63110afa46119647
---
arch/Config.in.arm | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/arch/Config.in.arm b/arch/Config.in.arm
index 100a28e997..b1d9173b84 100644
--- a/arch/Config.in.arm
+++ b/arch/Config.in.arm
@@ -512,6 +512,22 @@ config BR2_cortex_a76_a55
select BR2_ARM_CPU_ARMV8A
select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_9
+config BR2_neoverse_n1
+ bool "neoverse-N1 (alias ares)"
+ select BR2_ARM_CPU_HAS_ARM if !BR2_ARCH_IS_64
+ select BR2_ARM_CPU_HAS_NEON if !BR2_ARCH_IS_64
+ select BR2_ARM_CPU_HAS_THUMB2 if !BR2_ARCH_IS_64
+ select BR2_ARM_CPU_HAS_FP_ARMV8
+ select BR2_ARM_CPU_ARMV8A
+ select BR2_ARCH_HAS_MMU_OPTIONAL
+ select BR2_ARCH_NEEDS_GCC_AT_LEAST_9
+config BR2_tsv110
+ bool "tsv110"
+ depends on BR2_ARCH_IS_64
+ select BR2_ARM_CPU_HAS_FP_ARMV8
+ select BR2_ARM_CPU_ARMV8A
+ select BR2_ARCH_HAS_MMU_OPTIONAL
+ select BR2_ARCH_NEEDS_GCC_AT_LEAST_9
comment "armv8.4a cores"
config BR2_saphira
@@ -877,6 +893,8 @@ config BR2_GCC_TARGET_CPU
default "cortex-a75.cortex-a55" if BR2_cortex_a75_a55
default "cortex-a76" if BR2_cortex_a76
default "cortex-a76.cortex-a55" if BR2_cortex_a76_a55
+ default "neoverse-n1" if BR2_neoverse_n1
+ default "tsv110" if BR2_tsv110
# armv8.4a
default "saphira" if BR2_saphira
--
2.14.5
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